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726 lines
24 KiB
C
726 lines
24 KiB
C
/* Copyright (C) 2015-2016 Open Information Security Foundation
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*
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* You can copy, redistribute or modify this Program under the terms of
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* the GNU General Public License version 2 as published by the Free
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* Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* version 2 along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA.
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*/
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#include "suricata-common.h"
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#include "util-streaming-buffer.h"
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#include "util-unittest.h"
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#include "util-print.h"
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/**
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* \file
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*
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* \author Victor Julien <victor@inliniac.net>
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*
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* \brief Streaming Buffer API
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*/
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/* memory handling wrappers. If config doesn't define it's own set of
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* functions, use the defaults */
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#define MALLOC(cfg, s) \
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(cfg)->Malloc ? (cfg)->Malloc((s)) : SCMalloc((s))
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#define CALLOC(cfg, n, s) \
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(cfg)->Calloc ? (cfg)->Calloc((n), (s)) : SCCalloc((n), (s))
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#define REALLOC(cfg, ptr, orig_s, s) \
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(cfg)->Realloc ? (cfg)->Realloc((ptr), (orig_s), (s)) : SCRealloc((ptr), (s))
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#define FREE(cfg, ptr, s) \
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(cfg)->Free ? (cfg)->Free((ptr), (s)) : SCFree((ptr))
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static inline int InitBuffer(StreamingBuffer *sb)
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{
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sb->buf = CALLOC(sb->cfg, 1, sb->cfg->buf_size);
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if (sb->buf == NULL) {
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return -1;
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}
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sb->buf_size = sb->cfg->buf_size;
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return 0;
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}
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StreamingBuffer *StreamingBufferInit(const StreamingBufferConfig *cfg)
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{
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StreamingBuffer *sb = CALLOC(cfg, 1, sizeof(StreamingBuffer));
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if (sb != NULL) {
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sb->buf_size = cfg->buf_size;
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sb->cfg = cfg;
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if (cfg->buf_size > 0) {
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if (InitBuffer(sb) == 0) {
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return sb;
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}
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FREE(cfg, sb, sizeof(StreamingBuffer));
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/* implied buf_size == 0 */
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} else {
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return sb;
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}
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}
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return NULL;
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}
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void StreamingBufferClear(StreamingBuffer *sb)
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{
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if (sb != NULL) {
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SCLogDebug("sb->buf_size %u max %u", sb->buf_size, sb->buf_size_max);
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if (sb->buf != NULL) {
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FREE(sb->cfg, sb->buf, sb->buf_size);
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sb->buf = NULL;
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}
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}
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}
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void StreamingBufferFree(StreamingBuffer *sb)
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{
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if (sb != NULL) {
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StreamingBufferClear(sb);
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FREE(sb->cfg, sb, sizeof(StreamingBuffer));
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}
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}
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/**
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* \internal
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* \brief move buffer forward by 'slide'
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*/
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static void AutoSlide(StreamingBuffer *sb)
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{
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uint32_t size = sb->cfg->buf_slide;
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uint32_t slide = sb->buf_offset - size;
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SCLogDebug("sliding %u forward, size of original buffer left after slide %u", slide, size);
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memmove(sb->buf, sb->buf+slide, size);
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sb->stream_offset += slide;
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sb->buf_offset = size;
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}
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static void GrowToSize(StreamingBuffer *sb, uint32_t size)
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{
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/* try to grow in multiples of sb->cfg->buf_size */
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uint32_t x = sb->cfg->buf_size ? size % sb->cfg->buf_size : 0;
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uint32_t base = size - x;
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uint32_t grow = base + sb->cfg->buf_size;
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void *ptr = REALLOC(sb->cfg, sb->buf, sb->buf_size, grow);
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if (ptr != NULL) {
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/* for safe printing and general caution, lets memset the
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* new data to 0 */
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size_t diff = grow - sb->buf_size;
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void *new_mem = ((char *)ptr) + sb->buf_size;
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memset(new_mem, 0, diff);
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sb->buf = ptr;
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sb->buf_size = grow;
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SCLogDebug("grown buffer to %u", grow);
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#ifdef DEBUG
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if (sb->buf_size > sb->buf_size_max) {
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sb->buf_size_max = sb->buf_size;
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}
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#endif
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}
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}
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static void Grow(StreamingBuffer *sb)
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{
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uint32_t grow = sb->buf_size * 2;
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void *ptr = REALLOC(sb->cfg, sb->buf, sb->buf_size, grow);
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if (ptr != NULL) {
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/* for safe printing and general caution, lets memset the
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* new data to 0 */
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size_t diff = grow - sb->buf_size;
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void *new_mem = ((char *)ptr) + sb->buf_size;
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memset(new_mem, 0, diff);
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sb->buf = ptr;
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sb->buf_size = grow;
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SCLogDebug("grown buffer to %u", grow);
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#ifdef DEBUG
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if (sb->buf_size > sb->buf_size_max) {
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sb->buf_size_max = sb->buf_size;
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}
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#endif
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}
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}
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/**
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* \brief slide to absolute offset
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* \todo if sliding beyond window, we could perhaps reset?
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*/
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void StreamingBufferSlideToOffset(StreamingBuffer *sb, uint64_t offset)
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{
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if (offset > sb->stream_offset &&
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offset <= sb->stream_offset + sb->buf_offset)
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{
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uint32_t slide = offset - sb->stream_offset;
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uint32_t size = sb->buf_offset - slide;
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SCLogDebug("sliding %u forward, size of original buffer left after slide %u", slide, size);
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memmove(sb->buf, sb->buf+slide, size);
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sb->stream_offset += slide;
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sb->buf_offset = size;
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}
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}
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void StreamingBufferSlide(StreamingBuffer *sb, uint32_t slide)
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{
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uint32_t size = sb->buf_offset - slide;
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SCLogDebug("sliding %u forward, size of original buffer left after slide %u", slide, size);
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memmove(sb->buf, sb->buf+slide, size);
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sb->stream_offset += slide;
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sb->buf_offset = size;
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}
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#define DATA_FITS(sb, len) \
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((sb)->buf_offset + (len) <= (sb)->buf_size)
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StreamingBufferSegment *StreamingBufferAppendRaw(StreamingBuffer *sb, const uint8_t *data, uint32_t data_len)
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{
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if (sb->buf == NULL) {
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if (InitBuffer(sb) == -1)
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return NULL;
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}
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StreamingBufferSegment *seg = CALLOC(sb->cfg, 1, sizeof(StreamingBufferSegment));
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if (seg != NULL) {
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if (!DATA_FITS(sb, data_len)) {
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if (sb->cfg->flags & STREAMING_BUFFER_AUTOSLIDE)
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AutoSlide(sb);
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if (sb->buf_size == 0) {
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GrowToSize(sb, data_len);
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} else {
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while (!DATA_FITS(sb, data_len)) {
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Grow(sb);
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}
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}
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}
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if (!DATA_FITS(sb, data_len)) {
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FREE(sb->cfg, seg, sizeof(StreamingBufferSegment));
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return NULL;
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}
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memcpy(sb->buf + sb->buf_offset, data, data_len);
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seg->stream_offset = sb->stream_offset + sb->buf_offset;
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seg->segment_len = data_len;
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sb->buf_offset += data_len;
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return seg;
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}
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return NULL;
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}
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void StreamingBufferAppend(StreamingBuffer *sb, StreamingBufferSegment *seg,
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const uint8_t *data, uint32_t data_len)
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{
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BUG_ON(seg == NULL);
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if (sb->buf == NULL) {
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if (InitBuffer(sb) == -1)
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return;
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}
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if (!DATA_FITS(sb, data_len)) {
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if (sb->cfg->flags & STREAMING_BUFFER_AUTOSLIDE)
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AutoSlide(sb);
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if (sb->buf_size == 0) {
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GrowToSize(sb, data_len);
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} else {
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while (!DATA_FITS(sb, data_len)) {
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Grow(sb);
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}
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}
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}
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if (!DATA_FITS(sb, data_len)) {
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return;
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}
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memcpy(sb->buf + sb->buf_offset, data, data_len);
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seg->stream_offset = sb->stream_offset + sb->buf_offset;
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seg->segment_len = data_len;
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sb->buf_offset += data_len;
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}
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/**
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* \brief add data w/o tracking a segment
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*/
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void StreamingBufferAppendNoTrack(StreamingBuffer *sb,
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const uint8_t *data, uint32_t data_len)
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{
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if (sb->buf == NULL) {
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if (InitBuffer(sb) == -1)
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return;
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}
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if (!DATA_FITS(sb, data_len)) {
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if (sb->cfg->flags & STREAMING_BUFFER_AUTOSLIDE)
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AutoSlide(sb);
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if (sb->buf_size == 0) {
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GrowToSize(sb, data_len);
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} else {
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while (!DATA_FITS(sb, data_len)) {
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Grow(sb);
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}
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}
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}
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if (!DATA_FITS(sb, data_len)) {
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return;
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}
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memcpy(sb->buf + sb->buf_offset, data, data_len);
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sb->buf_offset += data_len;
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}
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#define DATA_FITS_AT_OFFSET(sb, len, offset) \
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((offset) + (len) <= (sb)->buf_size)
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/**
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* \param offset offset relative to StreamingBuffer::stream_offset
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*/
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void StreamingBufferInsertAt(StreamingBuffer *sb, StreamingBufferSegment *seg,
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const uint8_t *data, uint32_t data_len,
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uint64_t offset)
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{
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BUG_ON(seg == NULL);
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if (offset < sb->stream_offset)
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return;
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if (sb->buf == NULL) {
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if (InitBuffer(sb) == -1)
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return;
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}
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uint32_t rel_offset = offset - sb->stream_offset;
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if (!DATA_FITS_AT_OFFSET(sb, data_len, rel_offset)) {
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if (sb->cfg->flags & STREAMING_BUFFER_AUTOSLIDE) {
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AutoSlide(sb);
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rel_offset = offset - sb->stream_offset;
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}
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if (!DATA_FITS_AT_OFFSET(sb, data_len, rel_offset)) {
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GrowToSize(sb, (rel_offset + data_len));
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}
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}
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BUG_ON(!DATA_FITS_AT_OFFSET(sb, data_len, rel_offset));
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memcpy(sb->buf + rel_offset, data, data_len);
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seg->stream_offset = offset;
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seg->segment_len = data_len;
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if (rel_offset + data_len > sb->buf_offset)
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sb->buf_offset = rel_offset + data_len;
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}
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int StreamingBufferSegmentIsBeforeWindow(const StreamingBuffer *sb,
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const StreamingBufferSegment *seg)
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{
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if (seg->stream_offset < sb->stream_offset) {
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if (seg->stream_offset + seg->segment_len <= sb->stream_offset) {
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return 1;
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}
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}
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return 0;
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}
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void StreamingBufferSegmentGetData(const StreamingBuffer *sb,
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const StreamingBufferSegment *seg,
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const uint8_t **data, uint32_t *data_len)
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{
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if (seg->stream_offset >= sb->stream_offset) {
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uint64_t offset = seg->stream_offset - sb->stream_offset;
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*data = sb->buf + offset;
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if (offset + seg->segment_len > sb->buf_size)
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*data_len = sb->buf_size - offset;
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else
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*data_len = seg->segment_len;
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return;
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} else {
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uint64_t offset = sb->stream_offset - seg->stream_offset;
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if (offset < seg->segment_len) {
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*data = sb->buf;
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*data_len = seg->segment_len - offset;
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return;
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}
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}
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*data = NULL;
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*data_len = 0;
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return;
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}
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/**
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* \retval 1 data is the same
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* \retval 0 data is different
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*/
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int StreamingBufferSegmentCompareRawData(const StreamingBuffer *sb,
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const StreamingBufferSegment *seg,
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const uint8_t *rawdata, uint32_t rawdata_len)
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{
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const uint8_t *segdata = NULL;
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uint32_t segdata_len = 0;
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StreamingBufferSegmentGetData(sb, seg, &segdata, &segdata_len);
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if (segdata && segdata_len &&
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segdata_len == rawdata_len &&
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memcmp(segdata, rawdata, segdata_len) == 0)
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{
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return 1;
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}
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return 0;
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}
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int StreamingBufferGetData(const StreamingBuffer *sb,
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const uint8_t **data, uint32_t *data_len,
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uint64_t *stream_offset)
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{
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if (sb != NULL && sb->buf != NULL) {
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*data = sb->buf;
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*data_len = sb->buf_offset;
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*stream_offset = sb->stream_offset;
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return 1;
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} else {
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*data = NULL;
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*data_len = 0;
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*stream_offset = 0;
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return 0;
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}
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}
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int StreamingBufferGetDataAtOffset (const StreamingBuffer *sb,
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const uint8_t **data, uint32_t *data_len,
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uint64_t offset)
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{
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if (sb != NULL && sb->buf != NULL &&
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offset >= sb->stream_offset &&
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offset < (sb->stream_offset + sb->buf_offset))
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{
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uint32_t skip = offset - sb->stream_offset;
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*data = sb->buf + skip;
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*data_len = sb->buf_offset - skip;
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return 1;
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} else {
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*data = NULL;
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*data_len = 0;
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return 0;
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}
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}
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/**
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* \retval 1 data is the same
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* \retval 0 data is different
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*/
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int StreamingBufferCompareRawData(const StreamingBuffer *sb,
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const uint8_t *rawdata, uint32_t rawdata_len)
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{
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const uint8_t *sbdata = NULL;
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uint32_t sbdata_len = 0;
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uint64_t offset = 0;
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StreamingBufferGetData(sb, &sbdata, &sbdata_len, &offset);
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if (offset == 0 &&
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sbdata && sbdata_len &&
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sbdata_len == rawdata_len &&
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memcmp(sbdata, rawdata, sbdata_len) == 0)
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{
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return 1;
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}
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SCLogInfo("sbdata_len %u, offset %u", sbdata_len, (uint)offset);
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PrintRawDataFp(stdout, sbdata,sbdata_len);
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return 0;
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}
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void Dump(StreamingBuffer *sb)
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{
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PrintRawDataFp(stdout, sb->buf, sb->buf_offset);
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}
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void DumpSegment(StreamingBuffer *sb, StreamingBufferSegment *seg)
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{
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const uint8_t *data = NULL;
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uint32_t data_len = 0;
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StreamingBufferSegmentGetData(sb, seg, &data, &data_len);
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if (data && data_len) {
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PrintRawDataFp(stdout, data, data_len);
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}
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}
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#ifdef UNITTESTS
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static int StreamingBufferTest01(void)
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{
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StreamingBufferConfig cfg = { STREAMING_BUFFER_AUTOSLIDE, 8, 16, NULL, NULL, NULL, NULL };
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StreamingBuffer *sb = StreamingBufferInit(&cfg);
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FAIL_IF(sb == NULL);
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StreamingBufferSegment *seg1 = StreamingBufferAppendRaw(sb, (const uint8_t *)"ABCDEFGH", 8);
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StreamingBufferSegment *seg2 = StreamingBufferAppendRaw(sb, (const uint8_t *)"01234567", 8);
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FAIL_IF(sb->stream_offset != 0);
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FAIL_IF(sb->buf_offset != 16);
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FAIL_IF(seg1->stream_offset != 0);
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FAIL_IF(seg2->stream_offset != 8);
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FAIL_IF(StreamingBufferSegmentIsBeforeWindow(sb,seg1));
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FAIL_IF(StreamingBufferSegmentIsBeforeWindow(sb,seg2));
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FAIL_IF(!StreamingBufferSegmentCompareRawData(sb,seg1,(const uint8_t *)"ABCDEFGH", 8));
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FAIL_IF(!StreamingBufferSegmentCompareRawData(sb,seg2,(const uint8_t *)"01234567", 8));
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Dump(sb);
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StreamingBufferSegment *seg3 = StreamingBufferAppendRaw(sb, (const uint8_t *)"QWERTY", 6);
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FAIL_IF(sb->stream_offset != 8);
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FAIL_IF(sb->buf_offset != 14);
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FAIL_IF(seg3->stream_offset != 16);
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FAIL_IF(!StreamingBufferSegmentIsBeforeWindow(sb,seg1));
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FAIL_IF(StreamingBufferSegmentIsBeforeWindow(sb,seg2));
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FAIL_IF(StreamingBufferSegmentIsBeforeWindow(sb,seg3));
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FAIL_IF(!StreamingBufferSegmentCompareRawData(sb,seg3,(const uint8_t *)"QWERTY", 6));
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Dump(sb);
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StreamingBufferSegment *seg4 = StreamingBufferAppendRaw(sb, (const uint8_t *)"KLM", 3);
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FAIL_IF(sb->stream_offset != 14);
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FAIL_IF(sb->buf_offset != 11);
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FAIL_IF(seg4->stream_offset != 22);
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FAIL_IF(!StreamingBufferSegmentIsBeforeWindow(sb,seg1));
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FAIL_IF(StreamingBufferSegmentIsBeforeWindow(sb,seg2));
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FAIL_IF(StreamingBufferSegmentIsBeforeWindow(sb,seg3));
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FAIL_IF(StreamingBufferSegmentIsBeforeWindow(sb,seg4));
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FAIL_IF(!StreamingBufferSegmentCompareRawData(sb,seg4,(const uint8_t *)"KLM", 3));
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Dump(sb);
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StreamingBufferSegment *seg5 = StreamingBufferAppendRaw(sb, (const uint8_t *)"!@#$%^&*()_+<>?/,.;:'[]{}-=", 27);
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FAIL_IF(sb->stream_offset != 17);
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FAIL_IF(sb->buf_offset != 35);
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FAIL_IF(seg5->stream_offset != 25);
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FAIL_IF(!StreamingBufferSegmentIsBeforeWindow(sb,seg1));
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FAIL_IF(!StreamingBufferSegmentIsBeforeWindow(sb,seg2));
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FAIL_IF(StreamingBufferSegmentIsBeforeWindow(sb,seg3));
|
|
FAIL_IF(StreamingBufferSegmentIsBeforeWindow(sb,seg4));
|
|
FAIL_IF(StreamingBufferSegmentIsBeforeWindow(sb,seg5));
|
|
FAIL_IF(!StreamingBufferSegmentCompareRawData(sb,seg5,(const uint8_t *)"!@#$%^&*()_+<>?/,.;:'[]{}-=", 27));
|
|
Dump(sb);
|
|
|
|
StreamingBufferSegment *seg6 = StreamingBufferAppendRaw(sb, (const uint8_t *)"UVWXYZ", 6);
|
|
FAIL_IF(sb->stream_offset != 17);
|
|
FAIL_IF(sb->buf_offset != 41);
|
|
FAIL_IF(seg6->stream_offset != 52);
|
|
FAIL_IF(!StreamingBufferSegmentIsBeforeWindow(sb,seg1));
|
|
FAIL_IF(!StreamingBufferSegmentIsBeforeWindow(sb,seg2));
|
|
FAIL_IF(StreamingBufferSegmentIsBeforeWindow(sb,seg3));
|
|
FAIL_IF(StreamingBufferSegmentIsBeforeWindow(sb,seg4));
|
|
FAIL_IF(StreamingBufferSegmentIsBeforeWindow(sb,seg5));
|
|
FAIL_IF(StreamingBufferSegmentIsBeforeWindow(sb,seg6));
|
|
FAIL_IF(!StreamingBufferSegmentCompareRawData(sb,seg6,(const uint8_t *)"UVWXYZ", 6));
|
|
Dump(sb);
|
|
|
|
SCFree(seg1);
|
|
SCFree(seg2);
|
|
SCFree(seg3);
|
|
SCFree(seg4);
|
|
SCFree(seg5);
|
|
SCFree(seg6);
|
|
StreamingBufferFree(sb);
|
|
PASS;
|
|
}
|
|
|
|
static int StreamingBufferTest02(void)
|
|
{
|
|
StreamingBufferConfig cfg = { 0, 8, 24, NULL, NULL, NULL, NULL };
|
|
StreamingBuffer *sb = StreamingBufferInit(&cfg);
|
|
FAIL_IF(sb == NULL);
|
|
|
|
StreamingBufferSegment seg1;
|
|
StreamingBufferAppend(sb, &seg1, (const uint8_t *)"ABCDEFGH", 8);
|
|
StreamingBufferSegment seg2;
|
|
StreamingBufferAppend(sb, &seg2, (const uint8_t *)"01234567", 8);
|
|
FAIL_IF(sb->stream_offset != 0);
|
|
FAIL_IF(sb->buf_offset != 16);
|
|
FAIL_IF(seg1.stream_offset != 0);
|
|
FAIL_IF(seg2.stream_offset != 8);
|
|
FAIL_IF(StreamingBufferSegmentIsBeforeWindow(sb,&seg1));
|
|
FAIL_IF(StreamingBufferSegmentIsBeforeWindow(sb,&seg2));
|
|
Dump(sb);
|
|
DumpSegment(sb, &seg1);
|
|
DumpSegment(sb, &seg2);
|
|
|
|
StreamingBufferSlide(sb, 6);
|
|
|
|
StreamingBufferSegment seg3;
|
|
StreamingBufferAppend(sb, &seg3, (const uint8_t *)"QWERTY", 6);
|
|
FAIL_IF(sb->stream_offset != 6);
|
|
FAIL_IF(sb->buf_offset != 16);
|
|
FAIL_IF(seg3.stream_offset != 16);
|
|
FAIL_IF(StreamingBufferSegmentIsBeforeWindow(sb,&seg1));
|
|
FAIL_IF(StreamingBufferSegmentIsBeforeWindow(sb,&seg2));
|
|
FAIL_IF(StreamingBufferSegmentIsBeforeWindow(sb,&seg3));
|
|
Dump(sb);
|
|
DumpSegment(sb, &seg1);
|
|
DumpSegment(sb, &seg2);
|
|
DumpSegment(sb, &seg3);
|
|
|
|
StreamingBufferSlide(sb, 6);
|
|
FAIL_IF(!StreamingBufferSegmentIsBeforeWindow(sb,&seg1));
|
|
FAIL_IF(StreamingBufferSegmentIsBeforeWindow(sb,&seg2));
|
|
FAIL_IF(StreamingBufferSegmentIsBeforeWindow(sb,&seg3));
|
|
Dump(sb);
|
|
DumpSegment(sb, &seg1);
|
|
DumpSegment(sb, &seg2);
|
|
DumpSegment(sb, &seg3);
|
|
|
|
StreamingBufferFree(sb);
|
|
PASS;
|
|
}
|
|
|
|
static int StreamingBufferTest03(void)
|
|
{
|
|
StreamingBufferConfig cfg = { 0, 8, 24, NULL, NULL, NULL, NULL };
|
|
StreamingBuffer *sb = StreamingBufferInit(&cfg);
|
|
FAIL_IF(sb == NULL);
|
|
|
|
StreamingBufferSegment seg1;
|
|
StreamingBufferAppend(sb, &seg1, (const uint8_t *)"ABCDEFGH", 8);
|
|
StreamingBufferSegment seg2;
|
|
StreamingBufferInsertAt(sb, &seg2, (const uint8_t *)"01234567", 8, 14);
|
|
FAIL_IF(sb->stream_offset != 0);
|
|
FAIL_IF(sb->buf_offset != 22);
|
|
FAIL_IF(seg1.stream_offset != 0);
|
|
FAIL_IF(seg2.stream_offset != 14);
|
|
FAIL_IF(StreamingBufferSegmentIsBeforeWindow(sb,&seg1));
|
|
FAIL_IF(StreamingBufferSegmentIsBeforeWindow(sb,&seg2));
|
|
Dump(sb);
|
|
DumpSegment(sb, &seg1);
|
|
DumpSegment(sb, &seg2);
|
|
|
|
StreamingBufferSegment seg3;
|
|
StreamingBufferInsertAt(sb, &seg3, (const uint8_t *)"QWERTY", 6, 8);
|
|
FAIL_IF(sb->stream_offset != 0);
|
|
FAIL_IF(sb->buf_offset != 22);
|
|
FAIL_IF(seg3.stream_offset != 8);
|
|
FAIL_IF(StreamingBufferSegmentIsBeforeWindow(sb,&seg1));
|
|
FAIL_IF(StreamingBufferSegmentIsBeforeWindow(sb,&seg2));
|
|
FAIL_IF(StreamingBufferSegmentIsBeforeWindow(sb,&seg3));
|
|
Dump(sb);
|
|
DumpSegment(sb, &seg1);
|
|
DumpSegment(sb, &seg2);
|
|
DumpSegment(sb, &seg3);
|
|
|
|
StreamingBufferSlide(sb, 10);
|
|
FAIL_IF(!StreamingBufferSegmentIsBeforeWindow(sb,&seg1));
|
|
FAIL_IF(StreamingBufferSegmentIsBeforeWindow(sb,&seg2));
|
|
FAIL_IF(StreamingBufferSegmentIsBeforeWindow(sb,&seg3));
|
|
Dump(sb);
|
|
DumpSegment(sb, &seg1);
|
|
DumpSegment(sb, &seg2);
|
|
DumpSegment(sb, &seg3);
|
|
|
|
StreamingBufferFree(sb);
|
|
PASS;
|
|
}
|
|
|
|
static int StreamingBufferTest04(void)
|
|
{
|
|
StreamingBufferConfig cfg = { 0, 8, 16, NULL, NULL, NULL, NULL };
|
|
StreamingBuffer *sb = StreamingBufferInit(&cfg);
|
|
FAIL_IF(sb == NULL);
|
|
|
|
StreamingBufferSegment seg1;
|
|
StreamingBufferAppend(sb, &seg1, (const uint8_t *)"ABCDEFGH", 8);
|
|
StreamingBufferSegment seg2;
|
|
StreamingBufferInsertAt(sb, &seg2, (const uint8_t *)"01234567", 8, 14);
|
|
FAIL_IF(sb->stream_offset != 0);
|
|
FAIL_IF(sb->buf_offset != 22);
|
|
FAIL_IF(seg1.stream_offset != 0);
|
|
FAIL_IF(seg2.stream_offset != 14);
|
|
FAIL_IF(StreamingBufferSegmentIsBeforeWindow(sb,&seg1));
|
|
FAIL_IF(StreamingBufferSegmentIsBeforeWindow(sb,&seg2));
|
|
Dump(sb);
|
|
DumpSegment(sb, &seg1);
|
|
DumpSegment(sb, &seg2);
|
|
|
|
StreamingBufferSegment seg3;
|
|
StreamingBufferInsertAt(sb, &seg3, (const uint8_t *)"QWERTY", 6, 8);
|
|
FAIL_IF(sb->stream_offset != 0);
|
|
FAIL_IF(sb->buf_offset != 22);
|
|
FAIL_IF(seg3.stream_offset != 8);
|
|
FAIL_IF(StreamingBufferSegmentIsBeforeWindow(sb,&seg1));
|
|
FAIL_IF(StreamingBufferSegmentIsBeforeWindow(sb,&seg2));
|
|
FAIL_IF(StreamingBufferSegmentIsBeforeWindow(sb,&seg3));
|
|
Dump(sb);
|
|
DumpSegment(sb, &seg1);
|
|
DumpSegment(sb, &seg2);
|
|
DumpSegment(sb, &seg3);
|
|
|
|
/* far ahead of curve: */
|
|
StreamingBufferSegment seg4;
|
|
StreamingBufferInsertAt(sb, &seg4, (const uint8_t *)"XYZ", 3, 124);
|
|
FAIL_IF(sb->stream_offset != 0);
|
|
FAIL_IF(sb->buf_offset != 127);
|
|
FAIL_IF(sb->buf_size != 128);
|
|
FAIL_IF(seg4.stream_offset != 124);
|
|
FAIL_IF(StreamingBufferSegmentIsBeforeWindow(sb,&seg1));
|
|
FAIL_IF(StreamingBufferSegmentIsBeforeWindow(sb,&seg2));
|
|
FAIL_IF(StreamingBufferSegmentIsBeforeWindow(sb,&seg3));
|
|
FAIL_IF(StreamingBufferSegmentIsBeforeWindow(sb,&seg4));
|
|
Dump(sb);
|
|
DumpSegment(sb, &seg1);
|
|
DumpSegment(sb, &seg2);
|
|
DumpSegment(sb, &seg3);
|
|
DumpSegment(sb, &seg4);
|
|
|
|
FAIL_IF(!StreamingBufferSegmentCompareRawData(sb,&seg1,(const uint8_t *)"ABCDEFGH", 8));
|
|
FAIL_IF(!StreamingBufferSegmentCompareRawData(sb,&seg2,(const uint8_t *)"01234567", 8));
|
|
FAIL_IF(!StreamingBufferSegmentCompareRawData(sb,&seg3,(const uint8_t *)"QWERTY", 6));
|
|
FAIL_IF(!StreamingBufferSegmentCompareRawData(sb,&seg4,(const uint8_t *)"XYZ", 3));
|
|
|
|
StreamingBufferFree(sb);
|
|
PASS;
|
|
}
|
|
|
|
static int StreamingBufferTest05(void)
|
|
{
|
|
StreamingBufferConfig cfg = { STREAMING_BUFFER_AUTOSLIDE, 8, 32, NULL, NULL, NULL, NULL };
|
|
StreamingBuffer sb = STREAMING_BUFFER_INITIALIZER(&cfg);
|
|
|
|
StreamingBufferSegment *seg1 = StreamingBufferAppendRaw(&sb, (const uint8_t *)"AAAAAAAA", 8);
|
|
StreamingBufferSegment *seg2 = StreamingBufferAppendRaw(&sb, (const uint8_t *)"BBBBBBBB", 8);
|
|
StreamingBufferSegment *seg3 = StreamingBufferAppendRaw(&sb, (const uint8_t *)"CCCCCCCC", 8);
|
|
StreamingBufferSegment *seg4 = StreamingBufferAppendRaw(&sb, (const uint8_t *)"DDDDDDDD", 8);
|
|
FAIL_IF(sb.stream_offset != 0);
|
|
FAIL_IF(sb.buf_offset != 32);
|
|
FAIL_IF(seg1->stream_offset != 0);
|
|
FAIL_IF(seg2->stream_offset != 8);
|
|
FAIL_IF(seg3->stream_offset != 16);
|
|
FAIL_IF(seg4->stream_offset != 24);
|
|
FAIL_IF(StreamingBufferSegmentIsBeforeWindow(&sb,seg1));
|
|
FAIL_IF(StreamingBufferSegmentIsBeforeWindow(&sb,seg2));
|
|
FAIL_IF(StreamingBufferSegmentIsBeforeWindow(&sb,seg3));
|
|
FAIL_IF(StreamingBufferSegmentIsBeforeWindow(&sb,seg4));
|
|
FAIL_IF(!StreamingBufferSegmentCompareRawData(&sb,seg1,(const uint8_t *)"AAAAAAAA", 8));
|
|
FAIL_IF(!StreamingBufferSegmentCompareRawData(&sb,seg2,(const uint8_t *)"BBBBBBBB", 8));
|
|
FAIL_IF(!StreamingBufferSegmentCompareRawData(&sb,seg3,(const uint8_t *)"CCCCCCCC", 8));
|
|
FAIL_IF(!StreamingBufferSegmentCompareRawData(&sb,seg4,(const uint8_t *)"DDDDDDDD", 8));
|
|
Dump(&sb);
|
|
StreamingBufferSegment *seg5 = StreamingBufferAppendRaw(&sb, (const uint8_t *)"EEEEEEEE", 8);
|
|
FAIL_IF(!StreamingBufferSegmentCompareRawData(&sb,seg5,(const uint8_t *)"EEEEEEEE", 8));
|
|
Dump(&sb);
|
|
|
|
SCFree(seg1);
|
|
SCFree(seg2);
|
|
SCFree(seg3);
|
|
SCFree(seg4);
|
|
SCFree(seg5);
|
|
StreamingBufferClear(&sb);
|
|
PASS;
|
|
}
|
|
#endif
|
|
|
|
void StreamingBufferRegisterTests(void)
|
|
{
|
|
#ifdef UNITTESTS
|
|
UtRegisterTest("StreamingBufferTest01", StreamingBufferTest01);
|
|
UtRegisterTest("StreamingBufferTest02", StreamingBufferTest02);
|
|
UtRegisterTest("StreamingBufferTest03", StreamingBufferTest03);
|
|
UtRegisterTest("StreamingBufferTest04", StreamingBufferTest04);
|
|
UtRegisterTest("StreamingBufferTest05", StreamingBufferTest05);
|
|
#endif
|
|
}
|